Sorry to hear your MacBook Pro is not powering on. I found an article that can help with getting your MacBook Pro to power back on:
Intel-Based Apple Portables: Troubleshooting a computer that will not power on
I would start with the first step and work through them, but if you have verified your computer has power and disconnected all external devices besides the power adapter, step 6 might be the most useful:
I hope this helps get you back on track!